In a recent interview with ET Online, Stewart suggested that, unlike star Hugh Jackman, he would be interested in more films in the franchise. "Hugh has raised the flag that says goodbye. I haven't done that yet," he said.

Last year, Stewart explained that he had died in previous X-Men films and still managed to return. "Jean Grey vaporised me," he said, referring to his death in 2006's X-Men: The Last Stand. "From which you would think there would be no return. [But] the thing about science fiction and fantasy is that you can never, ever say it's the end."